Illinois Route 6

Illinois Route 6
IL 6 highlighted in red
Route information
Maintained by IDOT
Length	10.11 mi [1] [2]  (16.27 km)
Existed	1981–present
Major junctions
South end	I-74  / I-474 in Peoria
Major intersections	US 150 in Peoria
North end	IL 29 in Mossville
Location
Country	United States
State	Illinois
Counties	Peoria
Highway system
Illinois State Highway System Interstate US State Tollways Scenic
← US 6 → IL 7

Illinois Route 6 is a 4-lane freeway entirely in Peoria County in central Illinois. It begins as a northern extension of Interstate 474 at Interstate 74 west of Peoria, and ends at Illinois Route 29 at the 9th Mile in Mossville, south of Chillicothe. The freeway currently has a total length of 10.11 miles (16.27 km), including the connector ramp to Illinois 29. ^[1]

Route description

IL 6 approaching an indefinitely unfinished trumpet interchange

Although fairly short, Illinois 6 draws more traffic than a rural highway because it passes through the developing north and northwest edge of Peoria. A one-mile (1.6 km) stretch of road around the U.S. Route 150 (War Memorial Drive) exit has become a major commercial development area that now includes a major mall and a nearby strip mall with over 30 movie screens between them. In addition, new development is occurring rapidly around the other interchanges of Allen Road (old Illinois Route 174), Knoxville Avenue (Illinois Route 40), and Illinois Route 29. ^[2]

History

SBI Route 6 initially ran from Fulton to Chicago. It roughly followed present-day US 30, Illinois Route 38, and Roosevelt Road. ^[3] In 1935, IL 6 was decommissioned and was replaced with a portion of US 330 (now IL 38/Roosevelt Road) and US 30. ^[4]

The Illinois Route 6 designation remained decommissioned until 1981 when a part of the present freeway from I-74/I-474 to IL 91 opened. ^[5] By 1984, the freeway was extended east toward IL 88 (current IL 40). ^[6] In November 1985, the freeway was extended to Illinois Route 29 near Mossville. ^[7]

Future

Several plans have been considered for continuing the Illinois 6 corridor. One is extending Illinois 6 into a loop by building a bridge over the Illinois River and running the highway south to Interstates 74 and 474 near Interstate 155 in Morton. ^{[8] [9]} Another is to build north or northeast from the current terminus to a new interchange in Chillicothe, connecting with a proposed Illinois 29 expressway that would connect to Interstate 180. ^[10]

In 2013, Illinois Governor Pat Quinn proposed a $12.3 billion road plan that earmarked funds for engineering work and corridor studies, renewing interest in connecting Route 6 with I-74. ^[11]

Exit list

The entire route is in Peoria County.

Location	mi [1] [2]	km	Exit [12]	Destinations	Notes
​	0.00	0.00		I-474 east – Bloomington	Continuation beyond I-74; serves Peoria International Airport
			0	I-74  – Galesburg, Peoria	I-74 exit 87B; southern terminus & signed as exits 0A (west) & 0B (east)
Peoria	2.32	3.73	2	US 150 (War Memorial Drive) – Kickapoo
	5.51	8.87	5	Allen Road
	6.54	10.53	6	IL 40 (Knoxville Avenue) – Bradford
Mossville	9.18	14.77	9	IL 29  – Chillicothe	Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

1. Illinois Technology Transfer Center (2006). "T2 GIS Data" . Retrieved November 8, 2007.
2. "Overview map of IL 6" (Map). Google Maps . Retrieved November 19, 2020.
3. Illinois Secretary of State; Rand McNally (1934). Official Road Map Illinois (Map). [c. 1:950,000 and c. 1:1,110,000]. Springfield: Illinois Secretary of State. OCLC   183709045 – via Illinois Digital Archives.
4. Illinois Secretary of State; H.M. Gousha (1935). Official Road Map Illinois (Map). [c. 1:950,000 and c. 1:1,110,000]. Springfield: Illinois Secretary of State – via Illinois Digital Archives.
5. Illinois Department of Transportation (1981). Illinois Official Highway Map (PDF) (Map) (1981–1982 ed.). Springfield: Illinois Department of Transportation. Peoria inset.
6. Illinois Department of Transportation (1983). Illinois Highway Map (Map) (1983–1984 ed.). [1:762,500]. Springfield: Illinois Department of Transportation – via Illinois Digital Archives.
7. Muellerleile, Dean (June 9, 2022). "Ask Dean: Whatever happened to Peoria's plan to complete a ring highway around the city?". Peoria Journal Star. Retrieved July 4, 2025.
8. "Eastern Bypass Study (Official website)" . Retrieved July 28, 2020.
9. "Eastern Bypass Project Study" . Retrieved July 28, 2020.
10. "IL-29 Extension from IL Route 6 to Cedar Hills Drive" . Retrieved June 26, 2025.
11. Kaergard, Chris (April 18, 2013). "Quinn's $12.6B road plan includes rebuilding McClugage Bridge". PJStar.com . Peoria, Illinois: GateHouse Media . Retrieved April 30, 2015.
12. Sarjeant, Charles (October 5, 2006). "Illinois Highway Ends: Illinois Route 6". Archived from the original on March 9, 2012. Retrieved October 28, 2006.

External links

Template:Attached KML/Illinois Route 6

KML is from Wikidata

• Illinois State Highways Page: Routes 1 thru 20 - Rick Carlson